$ git clone -n https://src.fedoraproject.org/rpms/postgresql18-pgvector.git /var/lib/mock/f45-build-28825-633/root/chroot_tmpdir/scmroot/postgresql18-pgvector
Cloning into '/var/lib/mock/f45-build-28825-633/root/chroot_tmpdir/scmroot/postgresql18-pgvector'...
$ git fetch origin fb253c1ebe9c5961f94462c7d30957140980f552:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/postgresql18-pgvector
 * [new ref]         fb253c1ebe9c5961f94462c7d30957140980f552 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fb253c1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild